Name
- Adam and Charles Black, of London; printers, 1807-1
- Adlam, -, surveyor, fl 19001
- Admiralty Office1
- Admiralty, Hydrographic Department, 1795-1
- Ainsworth, John Dawson, colonial administrator, 1864-19461
- Air Council, 1918-19641
- Air Ministry, 1918-19641
- Albert, J.1
- Allan, A, fl 18181
- Allan, Alexander, 1st Baronet, politician, c 1764-18201
- Allen and Co William H., London, England1
- Alone, John Philip Herbert Mackenzie, army officer, fl 1891-19091
- American Geographical Society, 18511
- Anderson, Roy Dunlop, army officer, 1878-19321
- Anglo-Abyssinian Boundary Commission, 1908-19091
- Anglo-French Boundary Commission (Syria - Palestine) 1923, 19231
- Anglo-German Boundary Commission Nyasa-Tanganyika 1898, 18981
- Anglo-Italian Boundary Commission 1926-27, 1926-271
- Anglo-Portuguese Barotseland Boundary Commission 1903-1905, 1903-19051
- Anglo-Portuguese Boundary Commission North and South of the Zambesi 1904-1906, 1904-19061